What are two reasons that you would consider implementing a POW algo in your blockchain? (Select two.)

What are two reasons that you would consider implementing a POW algo in your blockchain? (Select two.)
A . PoW imposes no limits on actions in the network and therefore can thwart attacks better than other algos due to high cost
B . What matters is to have large computational power to solve the puzzles and form new blocks over having a financial stake.
C . PoW imposes some limits on actions in the network and therefore can thwart attacks better than other algos due to high cost
D . The algo is energy efficient compared to POS and BFT
E . The algo is energy efficient compared to POS and DPOS

View Answer

Answer: B,C

Explanation:

The main benefits are the anti-DoS attacks defense and low impact of stake on mining possibilities. Defense from DoS attacks. PoW imposes some limits on actions in the network. They need a lot of efforts to be executed. Efficient attack requires a lot of computational power and a lot of time to do the calculations. Therefore, the attack is possible but kind of useless since the costs are too high. Mining possibilities. It doesn’t matter how much money you have in your wallet .

What matters is to have large computational power to solve the puzzles and form new blocks. Thus, the holders of huge amounts of money are not in charge of making decisions for the entire network.